Hi,
Currently we are experience some issues with access for the external / guest users on the Workspace.
Update 19-11-2022 14:34 CET: The hotfix is deployed.
Update 19-11-2022 13:30 CET: The hotfix is tested and ready to be packaged an distributed. This is planned today 14:30 CET.
Update 18-11-2022 20:15 CET: The hotfix is developed and ready for testing. This is planned for tomorrow morning.
Update 18-11-2022 16:50 CET: We are currently working on a hotfix for this issue. The hotfix is expected to be implemented on Sunday.